Volume 42, Number 5, June 1998
|Page(s)||547 - 552|
|Section||Condensed matter: electronic structure, electrical, magnetic and optical properties|
|Published online||01 September 2002|
Self-trapping of electrons by vortices
Department of Physics, Loughborough University
Loughborough, Leicestershire, LE11 3TU, UK
2 Landau Institute - Moscow, Russia
3 Physik-Department E13, Technische Universität München James-Frank-Str.1, D-85748 Garching, Germany
Accepted: 21 April 1998
It is shown that electrons associated with vortices may be self-trapped by lattice deformations. In essence, the deformation creates a well in which part of the electrons associated with vortex cores are trapped. The effect is strongest in superconductors which have a strong electron-phonon coupling, a large coherence length and a significant ratio . The associated lattice deformations have been observed in a spin-polarised neutron scattering experiment on superconducting Nb.
PACS: 74.60.-w – Type-II superconductivity / 78.70.Nx – Neutron inelastic scattering
© EDP Sciences, 1998
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